import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import List from '../components/goods/List.vue'
import Params from '../components/goods/Params.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'


Vue.use(VueRouter)


const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home', component: Home,
      //重定向路由
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: List },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report },
      ]
    }
  ]
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // form 代表从哪个路径跳转而来
  // next 是一个函数 表示放行
  // next()放行   next('/login) 强制跳转到login

  if (to.path === '/login') {
    return next();
  }
  //获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) {
    return next('/login');
  }
  next();
})



export default router
